Somehow I seem to be getting on in years. I never had a problem with RV drain hoses until they suddenly became a lot stiffer than they used to be in the last year or two. I'm sure that's all. They're different. Either way, this large wrench with built-in 3-position adjustment is the way to go. In the maximum setting, it fits well on the mounts, the handles are placed at a comfortable distance. In fact, I was worried that they might be too big for their intended purpose, but they weren't. My…